Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:47 2012

Optimize a model with 1155 rows, 68 columns and 2310 nonzeros
Presolve removed 816 rows and 0 columns
Presolve time: 0.02s
Presolved: 339 rows, 68 columns, 2113 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.096260e+01, 145 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   10.96260    0   62    6.00000   10.96260  82.7%     -    0s
H    0     0                       7.0000000   10.96260  56.6%     -    0s
     0     0   10.69556    0   66    7.00000   10.69556  52.8%     -    0s
     0     0   10.60878    0   63    7.00000   10.60878  51.6%     -    0s
     0     0   10.56561    0   67    7.00000   10.56561  50.9%     -    0s
     0     0   10.54527    0   67    7.00000   10.54527  50.6%     -    0s
     0     0   10.54483    0   67    7.00000   10.54483  50.6%     -    0s
H    0     0                       8.0000000   10.54483  31.8%     -    0s
     0     0   10.54436    0   67    8.00000   10.54436  31.8%     -    0s
     0     2   10.54407    0   67    8.00000   10.54407  31.8%     -    0s

Cutting planes:
  Clique: 26
  Zero half: 7

Explored 23 nodes (1282 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%